Maths : Statistics: Book Back, Exercise, Example Numerical Question with Answers, Solution : Exercise 8.1: Statistics: Measures of Central Tendency, Arithmetic Mean

**Statistics: Measures of Central Tendency, Arithmetic Mean**

**Exercise 8.1**

**1. In a week, temperature of a certain
place is measured during winter are as follows 26 ^{o}C, 24^{o}C,
28^{o}C, 31^{o}C, 30^{o}C, 26^{o}C, 24^{o}C.
Find the mean temperature of the week.**

*Solution:*

**2. The mean weight of 4 members of a
family is 60kg.Three of them have the weight 56kg, 68kg and 72kg respectively. Find
the weight of the fourth member.**

*Solution:*

**3. In a class test in mathematics, 10
students scored 75 marks, 12 students scored 60 marks, 8 students scored 40 marks
and 3 students scored 30 marks. Find the mean of their score.**

*Solution:*

**4. In a research laboratory scientists
treated 6 mice with lung cancer using natural medicine. Ten days later, they measured
the volume of the tumor in each mouse and given the results in the table.**

**Find the mean.**

*Solution:*

**5. If the mean of the following data
is 20.2, then find the value of p**

*Solution:*

**6. In the class, weight of students is
measured for the class records. Calculate mean weight of the class students using
Direct method.**

*Solution:*

**7. Calculate the mean of the following
distribution using Assumed Mean Method:**

*Solution:*

**8. Find the Arithmetic Mean of the following
data using Step Deviation Method:**

*Solution:*

Tags : Numerical Problems with Answers, Solution | Statistics | Maths , 9th Maths : UNIT 8 : Statistics

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9th Maths : UNIT 8 : Statistics : Exercise 8.1: Statistics: Measures of Central Tendency, Arithmetic Mean | Numerical Problems with Answers, Solution | Statistics | Maths

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